Add Area Annotation

How to add Area Annotation in C#

Area annotation creates an area within the document page with a rectangle like shown at the picture below. 

There is an ability to specify the next properties for AreaAnnotation type:

  • BackgroundColor - describes area background color;
  • Box - defines annotation position at document page;
  • Opacity - allows to set annotation opacity;
  • PenColor - defines frame color;
  • PenStyle - defines frame line style (solid, dash, dot etc.);
  • PenWidth - defines frame line width in pixels.

Below steps shows how to add Area annotation to document:

  • Instantiate Annotator object with input document path or stream;
  • Instantiate AreaAnnotation object with desired properties (position, page number, etc);
  • Call Add method and pass AreaAnnotation object;
  • Call Save method with resultant document path or stream.

The following code demonstrates how to add AreaAnnotation to the document:

More resources

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

Add Arrow Annotation